Heating apparatus



Dec. 8, 1936. B. w. DAVIS HEATING APPARATUS Filed Dec. 14, 1954 Zmventor Be 29min W JJMW lly w Z 5 y 0 2 v 4 4 37 FM 9L uttornegs Patented Dec. 8 1936 i UNITED STATES PATENT OFFICE HEATING APPARATUS Benjamin W. Davis, Chicago, 111.

Application December 14, 1934, Serial No. 757,533

2 Claims. (01. 126-439) The present invention relates to an improvesubstantially twice its diameter or enlarged to ment in heating apparatus for buildings and like any extent desired with the transverse axis of the structures and for all other purposes, and has for leg 21 inclined at an angle which may be of 40 an object to provide an improved apparatus which or of any degree desired with respect to the hori- 5 is adapted for use in heat exchange from all zontal so as to provide an extensive inclined 5 products of combustion. surface area over which air or other suitable heat One purpose of the present invention is to protransferring medium may pass about the upper vide an apparatus wherein the medium of heat and lower sides and about the ends of the leg 21. exchange is broken up into separate and inde- The pp end f the leg 27 is turned pw y 0 pendent streams and independently heated from and then returned in spaced re to e l different successive portions of the source of heat to provide a' second spaced leg 28 which is of supply and wherein the surface area of contact similar construction and which may be disp between the heat exchange mediums is materiall at a desired angle with respect to the heater and increased and segregated to effect the practically e leg ThiS leg 23 is Oil-Set laterally With complete and thorough interchange of heat bee p t t the le 27 so that the leg 28 will re- 15 tween the medium ceive thereagainst and thereabout a stream of Another object of the inve ti i t provide air which is laterally disposed with respect to the an apparatus wherein at all times the coldest Stream Of Coming in Contact W the leg stream of air or other medium is brought into and any desired number f es le and 8 O-contact with the successive zones of the heat y be employed, according t0 the Size of the emanating medium so as to insure the complete heating app s d o er Conditions met with interchange of the heat between the mediums and and these legs are all not Only Vertically Sp ed to complete the wide-spread distribution of the apart hilt also laterally Off-Set to p vide S110- Same cessive zones of contact of the heating medium A further object f th i ti i t provide such as smoke and other products of combustion a heating apparatus which may be operated with passing u h the flue 26, into different streams great economy in that arelatively high percentage Portions of the d w ch is admitted to of heat exchange is accomplished so that there the apparatus- The uppermost l g 9 s con- Will be practically but little waste heat carried neotod to a chimney 0 ou h Which the 30 off i th m k nd gases through th chimney, products of combustion are carried out of the r th i building after substantially all of the useful heat With the foregoing and other objects in view, has been extracted therefromthe invention will be more fully described here- In order to promote circulation of air upwardin-after, and will be more particularly pointed out s about the heater and its heat anatin le s in t claims appended t 21, 28 and 29, a casing 3| may be placed about 35 In the drawing, wherein like symbols refer to these parts and may be of y Suitable Configuralike or corresponding parts throughout the severtion and 0f any Suitable height but as shown in al views, the present instance as having one wall 32 curved Figure 1 is a transverse section taken through p y and inwardly toward the pp e Wall aheating apparatus i t n in an enclosure and to form a contracted mouth or outlet for the 40 embodying the features of the present invention. heated other medium for passage into the Figure 2 is a transverse section taken through room enclosliiethe same on the line 22 in Figure 1. The heating apparatus and the casing 3i are Referring. now t the drawing and to the mounted upon a suitable flooring or base 34 and di t Shown in Figures 1 and 2 25 desigthe casing 3! is provided in its straight wall or 45 nates heater of any t l type and may be at any other suitable point with an air inlet opena coal, gas, or oil burner or constructed for use mg 35 of Suitable Size and which is preferably with any suitable source of heat energ The closely adjacent the floor 34 so that the coldest heater 25 is provided with flue or pipe 25 which, air in the enclosure will be drawn into the casing.

as shown in Figure 2, rises from one end portion This Opening 35 Preferably p d Opposite 50 of the heater and which, a short distance above the Wall 32 and the heater 25 is p v d u h the heater, is carried substantially horizontally its l w r r e p r n w h w r p s but with a slight incline backwardly over the 36 and 31 separated by a partition 38 which exmajor portion of the heater to form a heating leg tends to the wall 32 for the purpose of completely 21. This heating leg 21 is laterally enlarged to segregating the passages 36 and 31. The pas- 55 sages 36 and 31 open at their inlet ends opposite the casing opening 35 so that the cold air entering the opening 35 may be divided into several cold air streams, including an upper relatively clean air stream which enters the passage 36 above the partition 38 and is carried through the lower portion of the heater and freed between the heater and the wall 32. This upper stream of cold air is divided at the entrance to the passage 36 and passes in part upwardly about the adjacent side of the heater 25, and a baffle plate 39 may be placed in spaced relation about the adjacent side of the heater 25 and may extend upwardly into partly overlapping relation with respect to the leg 21 so as to confine the cold air stream against the heater and also deflect it about the underside of the leg 21.

The baffie 39 may of course be disposed at any suitable angle and may be otherwise positioned with respect to the leg 21 and as herein shown in order to deflect the cold air stream to the desired points of the apparatus.

The second cold air stream, adjacent the floor 34, is the dust-laden air stream and also contains impure air and gases which gravitate to the floor and this second air stream is carried along the floor 34 through the passage 31 and through'the wall 32 beneath the partition 38, an outlet pipe 40 being connected to the lower portion of the wall 32 for carrying off this impure and dustladen air directly to the chimney or stack 30.

As shown in Figures 1 and 2 this heating apparatus may be installed in a room having walls 4| and provided with a ceiling 42. The ceiling 42 may have a false ceiling 43 providing an air space 44 beneath the ceiling 42. The false ceiling 43 is provided with a desired number of openings 45 through which fresh air from outside the building, or other suitable source, may be admitted to the room or enclosure to displace the impure and dust-laden air which is extracted from the room or enclosure through the pipe 40 and stack 30. This serves as a ventilator and as a supply for fresh air to the room. This inflow of fresh air thus properly conditions the air within the room. The opening 44 may be supplied with air through a suitable ventilator 46 or the like as shown.

The cold air entering the ventilator 46 passes into the compartment or space 44 between the ceilings 42 and 43, and by virtue of the warm air in the room this fresh air is partially preheated to some extent before it is freed through the openings 45 into the room. It is of course understood that wherever it is required or found convenient clean-out doors, hand holes or other suitable devices or structures may be used for facilitating the cleaning out of the various flues and passages in the apparatus.

While I have herein shown and described a preferred form of my invention, it is nevertheless to be understood that various changes may be made in the details of construction, proportion and arrangement of parts within thescope of the claims herewith appended.

What is claimed is:

1. Heating apparatus including a casing having an opening in the top and bottom thereof, one wall of the casing being inclined upwardly and in the direction of the opposing wall, said opposing wall being substantially vertical and the bottom opening being in said vertical wall, a heater in the casing, a plurality of interconnected heat radiating flues connected at one end to the heater, said flues being of flattened form with their longitudinal axes horizontal and with their flattened faces substantially parallel and inclined to the vertical in the direction of said one inclined wall, said flues being disposed in spaced apart stepped relation in such a manner that the lower walls thereof form a heat exchanging baffle for the rising current of air.

2. Heating apparatus including a casing having an opening in the top thereof and an opening adjacent the bottom of a vertical wall thereof, a heater in the casing, a plurality of interconnected heat radiating flues connected at one end to the heater, said flues being of flattened form with their longitudinal axes horizontal and with their flattened faces substantially parallel and inclined to the vertical in the direction of the wall opposite from said one vertical wall, said flues being disposed in spaced apart stepped relation in such a manner that the lower walls thereof form a heat exchanging baflle for the current of air rising substantially vertically from said bottom opening.

BENJAMIN W. DAVIS. 

